astro/.changeset/shaggy-countries-battle.md

---
'astro': minor
---

**This is a breaking change**

Updated the rendering pipeline for `astro` to truly support any framework.

For the vast majority of use cases, `astro` should _just work_ out of the box. Astro now depends on `@astro-renderer/preact`, `@astro-renderer/react`, `@astro-renderer/svelte`, and `@astro-renderer/vue`, rather than these being built into the core library. This opens the door for anyone to contribute additional renderers for Astro to support their favorite framework, as well as the ability for users to control which renderers should be used.

**Features**

- Expose a pluggable interface for controlling server-side rendering and client-side hydration
- Allows components from different frameworks to be nested within each other.
  > Note: `svelte` currently does support non-destructive hydration, so components from other frameworks cannot currently be nested inside of a Svelte component. See https://github.com/sveltejs/svelte/issues/4308.

**Breaking Changes**

- To improve compiler performance, improve framework support, and minimize JS payloads, any children passed to hydrated components are automatically wrapped with an `<astro-fragment>` element.
Renderer plugins (#231) * refactor: pluggable renderers * refactor: cache renderer per component * docs: update comments on snowpack plugin `transform` method * docs: add comments to renderer plugins * refactor: convert components to Map * fix: pass children through to astro __render * refactor: move Components/ComponentInfo to shared types * refactor: remove `gatherRuntimes` step, just scan output for imports * refactor: update isComponentTag logic * chore: move dependencies to renderers * fix: cross-platform transform injection * feat: defer renderer to react, fallback to preact * fix: use double quotes in generated script * test: fix failing children tests * test: add workspaceRoot to all tests * fix: pass props to renderer check * chore: add test:core script back for convenience * chore: remove unused external * chore: rename renderers * chore: add astring, estree-util-value-to-estree * chore: render-component => __astro_component * refactor: split hydrate logic to own file * refactor: use `astro-fragment` rather than `div` * chore: remove unused hooks * chore: delete unused file * chore: add changesets * fix: Astro renderer should be async * fix: remove <astro-fragment> for static content * test: fix failing test * chore: normalize config interface * feat: allow renderers to inject a snowpackPlugin * fix: resolve import URL before using dynamic import * refactor: update renderers to use separate /server entrypoint * refactor: update server renderer interface * fix: get renderers working again * test: debug failing test * test: better debug * test: better debug * test: remove debug * fix: support esm and cjs packages via "resolve" * refactor: split hydrate functions into individual files * fix: dependency resolution relative to projectRoot * fix: @snowpack/plugin-postcss needs to be hoisted * fix: do not test prettier-plugin-astro as it's not ready for primetime 2021-05-26 13:30:22 -05:00			`---`
			`'astro': minor`
			`---`

			`This is a breaking change`

			Updated the rendering pipeline for `astro` to truly support any framework.

			For the vast majority of use cases, `astro` should _just work_ out of the box. Astro now depends on `@astro-renderer/preact`, `@astro-renderer/react`, `@astro-renderer/svelte`, and `@astro-renderer/vue`, rather than these being built into the core library. This opens the door for anyone to contribute additional renderers for Astro to support their favorite framework, as well as the ability for users to control which renderers should be used.

			`Features`
[ci] yarn format 2021-05-26 18:31:27 +00:00
Renderer plugins (#231) * refactor: pluggable renderers * refactor: cache renderer per component * docs: update comments on snowpack plugin `transform` method * docs: add comments to renderer plugins * refactor: convert components to Map * fix: pass children through to astro __render * refactor: move Components/ComponentInfo to shared types * refactor: remove `gatherRuntimes` step, just scan output for imports * refactor: update isComponentTag logic * chore: move dependencies to renderers * fix: cross-platform transform injection * feat: defer renderer to react, fallback to preact * fix: use double quotes in generated script * test: fix failing children tests * test: add workspaceRoot to all tests * fix: pass props to renderer check * chore: add test:core script back for convenience * chore: remove unused external * chore: rename renderers * chore: add astring, estree-util-value-to-estree * chore: render-component => __astro_component * refactor: split hydrate logic to own file * refactor: use `astro-fragment` rather than `div` * chore: remove unused hooks * chore: delete unused file * chore: add changesets * fix: Astro renderer should be async * fix: remove <astro-fragment> for static content * test: fix failing test * chore: normalize config interface * feat: allow renderers to inject a snowpackPlugin * fix: resolve import URL before using dynamic import * refactor: update renderers to use separate /server entrypoint * refactor: update server renderer interface * fix: get renderers working again * test: debug failing test * test: better debug * test: better debug * test: remove debug * fix: support esm and cjs packages via "resolve" * refactor: split hydrate functions into individual files * fix: dependency resolution relative to projectRoot * fix: @snowpack/plugin-postcss needs to be hoisted * fix: do not test prettier-plugin-astro as it's not ready for primetime 2021-05-26 13:30:22 -05:00			`- Expose a pluggable interface for controlling server-side rendering and client-side hydration`
[ci] yarn format 2021-05-26 18:31:27 +00:00			`- Allows components from different frameworks to be nested within each other.`
Renderer plugins (#231) * refactor: pluggable renderers * refactor: cache renderer per component * docs: update comments on snowpack plugin `transform` method * docs: add comments to renderer plugins * refactor: convert components to Map * fix: pass children through to astro __render * refactor: move Components/ComponentInfo to shared types * refactor: remove `gatherRuntimes` step, just scan output for imports * refactor: update isComponentTag logic * chore: move dependencies to renderers * fix: cross-platform transform injection * feat: defer renderer to react, fallback to preact * fix: use double quotes in generated script * test: fix failing children tests * test: add workspaceRoot to all tests * fix: pass props to renderer check * chore: add test:core script back for convenience * chore: remove unused external * chore: rename renderers * chore: add astring, estree-util-value-to-estree * chore: render-component => __astro_component * refactor: split hydrate logic to own file * refactor: use `astro-fragment` rather than `div` * chore: remove unused hooks * chore: delete unused file * chore: add changesets * fix: Astro renderer should be async * fix: remove <astro-fragment> for static content * test: fix failing test * chore: normalize config interface * feat: allow renderers to inject a snowpackPlugin * fix: resolve import URL before using dynamic import * refactor: update renderers to use separate /server entrypoint * refactor: update server renderer interface * fix: get renderers working again * test: debug failing test * test: better debug * test: better debug * test: remove debug * fix: support esm and cjs packages via "resolve" * refactor: split hydrate functions into individual files * fix: dependency resolution relative to projectRoot * fix: @snowpack/plugin-postcss needs to be hoisted * fix: do not test prettier-plugin-astro as it's not ready for primetime 2021-05-26 13:30:22 -05:00			> Note: `svelte` currently does support non-destructive hydration, so components from other frameworks cannot currently be nested inside of a Svelte component. See https://github.com/sveltejs/svelte/issues/4308.

			`Breaking Changes`

[ci] yarn format 2021-05-26 18:31:27 +00:00			- To improve compiler performance, improve framework support, and minimize JS payloads, any children passed to hydrated components are automatically wrapped with an `<astro-fragment>` element.